{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["application", "manufacturing standard", "process characterization", "machine or equipment", "material", "concept or principle"], "input": "Further properties such as porosity and hardness were investigated using light optical microscopy ."}
{"application": [], "manufacturing standard": [], "process characterization": ["optical microscopy"], "machine or equipment": [], "material": ["as"], "concept or principle": ["properties"]}